i am joined now by professor francesco dominicci in boston.rse, if you may. what are the main findings of your study? yes, good evening and thank you for having me. the takeaway of the study is that historical exposure to air pollution is associated with higher risk of death for covid—19. we have conducted a national study in the united states that quantified the potential increase in covid—19 mortality that is associated with historical exposure to air pollution. 0ur with historical exposure to air pollution. our study accounts for over 90% of the debts that have been occurring in the united states as of april four, 2020. in summary, we found that a person that has been living for decades in a county with high level of fine particulate matter is 15% more likely to die from coronavirus than someone die from coronavirus than someone in a region with much less exposure to air pollution. and isn't therefore simplistic to say that capital cities like new york, like london, london for example, or paris, are they seeing such high levels of debts bec